Lance head for a snow lance and nozzle arrangement

Abstract

In a snow lance head for use with a snow lance with a housing having nozzles for the outlet of water and/or air and with at least one first chamber formed in the interior of the housing, through which water emerging from at least some of the nozzles flows, the surface area of the inner surface of the chamber is at least equal to, but preferably greater than the outer surface of the housing.

1. A snow lance head comprising
 a housing comprising nozzles for the outlet of water or air, the housing having an interior surface and an exterior surface; 
 at least one chamber formed in the interior of the housing through which water emerges from the nozzles, and having an interior surface formed in the housing; and 
 wherein the interior surface of the chamber has ribs extending from the interior surface of the chamber to increase the surface area in contact with the water such that the interior surface of the chamber has a surface area greater than a surface area of the outer surface of the housing; and wherein the housing is spherical on the exterior surface and the nozzles are located on a spherical exterior surface of the housing. 
 
     
     
       2. The snow lance head according to  claim 1 , wherein the housing is made of a metal that conducts heat selected from aluminum or an aluminum alloy. 
     
     
       3. The snow lance head according to  claim 1 , wherein the housing has a round shape on the greater part of its outer surface. 
     
     
       4. The snow lance head according to  claim 1 , wherein the housing is spherical. 
     
     
       5. The snow lance head according to  claim 1 , wherein at least one further chamber is provided in the housing and is connected with nozzles on the outside of the housing. 
     
     
       6. The snow lance head according to  claim 5 , wherein the first chamber can be pressurized with fixed water for operation of the snow lance head and the at least one further chamber can be pressurized with water in a controlled manner. 
     
     
       7. The snow lance head according to  claim 1 , wherein a nozzle arrangement comprising at least one nucleator, the at least one nucleator and at least one water nozzle are provided on a common support. 
     
     
       8. The snow lance head according to  claim 7 , wherein the support is disk-shaped. 
     
     
       9. The snow lance head according to  claim 8 , wherein at least two further nozzles are provided on the support radially offset from one nozzle axis (DA) of the nucleator. 
     
     
       10. The snow lance head according to  claim 1 , wherein a support is inserted in a recess in a part of the housing wall limiting the first chamber.